Loeenzo d



L.D.BENNER,

Paper Bags.

N0. 134,244. Patented Dec.24,1872.

UNITED STATES PATENT OFFICE LORENZO D. BENNER, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO UNION PAPER-BAG MACHINE COMPANY.

lNliROVEMENT IN PAPER BAGS.

Specification forming part of Letters Patent No. Etilf, dated December 24, 1872.

To albwhom it 'may concern:

Be it known that I, LoRENzo D. BENNER,

of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improved Paper Bag; and I do hereby declare that the following, takenlin connection with the drawing which accompanies and forms part of this specification, is a description of my invention sufficient to enable those skilled in the artto practice it.

The invention relates to the manufacture of square-bottomed bags 5 and consists in so folding and cementing a strip ofpaper that when cut into sections of suitable length, one end being closed by one fold, the bottom of the bag or case thus formed, when opened or iilled, will assume a quadrangular shape. y

A long strip of paper may be used, and the edges turned over, lapped, and cemented, the folds laid, and the end cut, and the bottom flap turned over, lapped, and cemented to the body simultaneously, or in immediate succession, in the same machine; and this is the method preferred by me. A

The drawing represents a bag embodying my invention and the process used by me in the formation of the bag.

I take a strip of paper, or, what is better, the

. end of a long strip, and fold it and bend the sides inward to form the longitudinal folds a, and lap the edges so that it assumes the general shape shown at A, the lapping edges being cemented, and I cut the bag-forming length from the strip, first cutting on the line b c and then severing on a line or plane that l will leave a projecting flap or end, as seen at B, and, the tube being ilattened, the flap d is turned over and cemented down upon the seam-face ot' the bag, as seen at C, the bag thus made having, when expanded, the forni shown at D, the inside of the bottom assuming the shape shownA at E, while the outer side ofthe bottom has the appearance shown at F.

By this method of making paper bags, square-bottomed bags can be made as cheaply and rapidly as common bags, it being only necessary to attach to such machines as are now in most extensive use guide-lingers or devices which turn the paper inwardly to make the folds.

I claim- As a new article of manufacture, a paper baghaving two longitudinal inward folds, a a, terminating in a single lateral fold extending from b to c, and cemented to its body, forming its bottom, as here shown, and for the purpose set forth.

Executed this 14th day of April, A. D. 1872.

LORENZO D` BENNER'.

Witnesses:

FRANCIS GOULD, S. B. KIDDER. 

